1,720,960 research outputs found
Assessing user perceptions of trust and security in manipulated versions of low trust and high trust tourism websites
No full textThe aim of this study was to investigate how perceptions of security and trust are involved in user evaluations of tourism websites and whether manipulations to heighten or lessen trust features could predict trust perceptions. Seven websites were manipulated to produce low and high trust versions, with the original used as a control version. Four trust manipulations were used based on the literature: level of currency, credibility, craftsmanship and trust logos. Fifty-six participants viewed one version of each website for 6 seconds and submitted an immediate rating of trust for each site. Following this, an 11-item self-report measure was completed for each website, to collect more considered perceptions of trust, appeal, security and usability. Self-perception measures of trust disposition and concern for information privacy were also collected. The analyses showed that the presence or absence of trust features reliably led to higher and lower perceptions of trust respectively. Also, those scoring higher on trust disposition gave higher trust ratings. We conclude that websites can be reliably designed to engender more or less perceived trust, however individual differences need to be considered. This preliminary research is limited but studying just four factors and further research is needed to manipulate other website features.</p
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Helping programmers get what they want
No full textNotions of "good practice" exist for many aspects of a programmer’s work. They are intended to bring benefits on a variety of dimensions from the most concrete and measurable, such as program speed, to more subjective characteristics such as readability. This research addresses programmer practices good or bad in any part of their professional work but considers them from the perspective of a single outcome: impact on the productivity of fellow programmers. The findings are now being applied in an experimental new framework for professional development
Helping developers to help each other: a technique to facilitate understanding among professional software developers.
Get PDFMuch of a professional software developer’s work involves amending or extending pre-existing software; creating new software from scratch represents only a small proportion of their time. Even in a brand new project they still need to make sense of work others have done in the emerging software system. This research addresses how developers are helped or hindered in their own daily tasks by the actions of their peers. The literature commonly focuses on a specific aspect of the work such as code comprehension or the processes by which a project is run. This research instead takes a holistic view that considers all the activities involved in the job, but from a single uniting perspective: rather than conventional measures such as coding errors or delivery timescales, the criterion here is how a developer personally experiences their own productivity to be affected by their peers. The research used one-to-one interviews to identify common behaviours that help or hinder fellow software developers. Experienced software developers discussed team- friendly (and otherwise) behaviours across the breadth of their typical workplace tasks. The key themes to emerge from this qualitative data make a contribution to the understanding of software development by giving a comprehensive, developer’s- eye view of behaviours that help or hinder them across the whole range of tasks that fill their days. These themes laid the foundation for a practical application of the research. Techniques which had proved engaging and useful in the interviews were adapted into a continuing professional development workshop designed to encourage team discussion on issues of local resonance, selected by participants from those which the interviews had shown to be important. The topics resonated in a way which reinforces the validity of the interview findings. Participants enthusiastically identified useful actions for their own teams and would recommend the workshop to others. They also saw potential for future development into different workplace scenarios. The workshop is just one application of the understanding contributed by the research. The principles of good practice from the human perspective that have been identified also offer an empirical foundation that could be of practical use in appraisals, recruitment and any other scenario which requires an understanding of software developers not just as computer programmers but as people
Workshops materials: Helping programmers get what they want.
Get PDFSoftware Developer card sort topics: Cards used for card sorting categorisation task. Software developers place each card according to the personal impact on their own work when a colleague exhibits the behaviour described on the card. Asking themselves "how does this affect ME?", they place the card in one of the following categories: Bad. Noticeable impact. Bad. Slight impact. Neutral. Good. Slight impact. Good. Noticeable impact.
Software Developer Workshop materials: Cards used in workshop sessions for software developers. The process is for each person present to select one card from the complete set, laid out on a table. Once everyone has chosen, each person in turn explains their choice. Please let me know how you use these, and the results. More details in the attached instructions
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